Maintenance work on the superstructure
8.10 Main boom
13.02.2018
Maintenance manual 3 302 719 en 8 - 85
GMK6300L-1
Telescopic
section
VI - II
• Observe the following instructions regarding maintenance work.
The following diagrams show the lubrication of the telescopic section
VI.
The telescope sections V, IV, III and II are lubricated in he same way.
• Extend the telescopic section VI 100% and the telescopic section V
approx. 25%.
Lubricate the slide faces
• Use a brush or a roller (PAL1) to lubricate
the outer, upper and outer, lower slide
faces (3).
• Remove the plates (1) from both sides of the
openings (2).
• With a torch, have a helper illuminate the
inside through an opening, while you insert
the spray extension in the other opening on
the other side.
• Use the spray extension (PAL1) to lubricate
the inner, upper slide faces (4) on both sides.
• Fasten the plates (1) on both sides of
the openings (2).
Lubricating the locking pins
• Use the grease gun (RHUS 2 AF) to lubricate
the locking pins at the grease nipples (1)
on both sides.
• Derrick the main boom to 15°.
• Fully retract telescopic section V.
• Fully retract telescopic section VI.
• Lock and unlock the telescopic section VI
several times, so that the grease is
distributed over the locking pins.
• Fully extend and retract the telescopic
section
VI again so that the grease is
distributed over the slide faces.
• Lower the main boom to 0°.
H
In case the grease has not covered the slide faces sufficiently, you must
carry out the lubrication operation again.
• Lubricate the telescopic sections V, VI, III and II in the same way.
s
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